Wayland+mesa-software build issue

We are facing issues trying to setup a Wayland based graphics build that uses software rendering provided by mesa instead of the hardware acceleration provided by vivante/imx-gpu packages.

It will be really helpful if we can get hands on a working
Wayland+mesa-software rendering build.

Is there a prebuilt image or build instructions for such a setup?

No, unfortunately such a setup does not really make much sense. One would need to figure out all the places the build currently assumes hardware rendering and override resp. settings.